CurrencyFreaks
"The free forex API trusted by developers worldwide" [1]
CurrencyFreaks is a REST API providing real-time and historical foreign exchange rates for 166 fiat currencies, 4 precious metals, and 850 cryptocurrencies, with data sourced from forex exchanges, cryptocurrency exchanges, and national banks dating back to 1984. It suits developers building currency conversion, financial reporting, or multi-currency pricing features, with a free tier capped at 1,000 requests per month and USD base currency only. Paid plans start at $9.99 per month and unlock additional base currencies, conversion endpoints, time series, and update frequencies as fast as 60 seconds. SDKs are available in nine languages, and customers include HP, Gartner, and Equiti.
Best for / Avoid if
Best for: Prototypes and side projects - free to start, no sales call; Teams needing broad API coverage out of the box; Cost-sensitive teams - low, transparent entry price
Avoid if: You have strict compliance requirements
Scores
- 20 / 100Agent friendliness
- 100 / 100Pricing transparency
- 85 / 100Setup speed
- 15 / 100Docs quality
- 100 / 100Procurement ease
- 35 / 100Trust readiness
Pricing & procurement
- Pricing model
- Subscription
- Published pricing
- ✓ Yes
- Free tier
- ✓ Yes
- Free tier details
- Developer plan: 1,000 API calls/month at no charge; USD base currency only; rates updated every 24 hours; latest rates endpoint only; no conversion endpoints; no custom base currency; no credit card required
- Self-serve signup
- ✓ Yes [2]
- Requires sales call
- ✗ No
- Enterprise plan
- ✓ Yes [3]
| Plan | Item | Per | Amount | Source |
|---|---|---|---|---|
| Developer | API plan | month | $0 | source |
| Developer | API calls included | 1,000 calls/month | $0 | source |
| Starter | API plan | month | $9.99 | source |
| Starter | API calls included | 15,000 calls/month | $9.99 | source |
| Growth | API plan | month | $49.99 | source |
| Growth | API calls included | 150,000 calls/month | $49.99 | source |
| Professional | API plan | month | $99.99 | source |
| Professional | API calls included | 550,000 calls/month | $99.99 | source |
| Enterprise | API plan | month | - | source |
Capabilities
- Supported actions
- latest_rates, historical_rates, latest_conversion, historical_conversion, time_series, fluctuation, currencies_list, currency_symbols, historical_data_limits, ip_to_currency [4]
- Regions
- 166 fiat currencies, 4 precious metals, 850 cryptocurrencies, 1020 total currencies, historical data available from 1984-11-28, rates updated every 60 seconds on Professional/Enterprise plans, rates updated every 10 minutes on Growth plan, rates updated hourly on Starter plan, rates updated every 24 hours on free plan, data sourced from forex exchanges, cryptocurrency exchanges, and national banks
- Input types
- currency code (ISO 4217), base currency, symbols filter, date (YYYY-MM-DD), start date, end date, amount, IP address (IPv4/IPv6), format (json/xml)
- Output types
- JSON, XML [5]
- Webhooks
- ✗ No [6]
- Sandbox / test mode
- ✗ No [7]
- SDK languages
- Java, Python, JavaScript, PHP, Ruby, Swift, C#, Go, C [8]
- MCP server
- ✗ No
Trust & compliance
- SOC 2
- – Unknown
- HIPAA
- – Unknown
- GDPR
- ✓ Yes [9]
- ISO 27001
- – Unknown
- PCI DSS
- – Unknown
- Published SLA
- ✓ Yes [10]
- Rate limits
- Monthly hard quotas per plan (no hourly/daily sub-limits); free plan: 1,000 calls/month; paid plans receive alerts at 80%, 90%, 100% consumption with a 10% buffer before suspension; HTTP 429 returned once quota exhausted; unused calls do not roll over [11]
- Known restrictions
- Free plan restricted to USD as base currency only, Free plan provides latest rates endpoint only (no conversion, time series, or fluctuation), Conversion endpoints (latest and historical) require paid plan, IP-to-currency endpoint requires Growth plan or higher, Time series and fluctuation endpoints require Professional plan or higher, No redistribution or resale of API data permitted, End users may not store or distribute data beyond personal use, Monthly quotas do not carry over to the next period, Exceeding quota returns HTTP 429 until quota renews, Attribution not required but a backlink to currencyfreaks.com is 'highly appreciated', API usage prohibited for gambling, adult content, dating, alcohol industry, and illegal activities
Developer surface
Integration
- API style
- rest
- Base URL
- https://api.currencyfreaks.com/v2.0/
- Version
- v2.0
- Versioning
- url
- Stability
- ga
- Auth methods
- api_key
- Idempotency keys
- ✗ No
- Error format
- vendor-specific
- Rate limit
- 1000 / month
Adoption & maturity
- Launched
- 2019-01-01
- Notable customers
- Equiti, HP, Gartner, University of Georgia, Exigo, Savart, Timify, Oodles
Other Currency & Exchange Rate APIs
Twelve Data (Forex API)
"Real-time foreign exchange rates API and historical forex data for 140 world currencies."
OANDA Exchange Rates API
"Plug the gold standard in global exchange rates into your financial and accounting workflows."
ExchangeRate-API
"Free & Pro Currency Converter API"
CurrencyAPI
"The perfect tool to handle your exchange rate conversions. Our API helps you with current and historical foreign exchanges rates."
Abstract Exchange Rates API
"Get live and historical data from 60+ fiat and crypto currencies via a modern REST API"
FreeCurrencyAPI
"The 100% free solution for handling exchange rate conversions."
References
- ↑Description: currencyfreaks.com
- ↑Self-serve signup: currencyfreaks.com
- ↑Enterprise plan: currencyfreaks.com
- ↑Supported actions: currencyfreaks.com
- ↑Output types: currencyfreaks.com
- ↑Webhooks: currencyfreaks.com
- ↑Sandbox: currencyfreaks.com
- ↑SDK languages: currencyfreaks.com
- ↑GDPR: currencyfreaks.com
- ↑Published SLA: currencyfreaks.com
- ↑Rate limits: currencyfreaks.com · currencyfreaks.com
Change history
- 2026-06-15 Score Agent Friendliness: 10 → 20
- 2026-06-14 Has Structured Data: (none) → No
- 2026-06-14 Robots Allows Agents: (none) → Yes
- 2026-06-14 Capabilities: {} → {"crypto":true,"metals":true,"intraday":true,"conversion":true,"historical":tru…
- 2026-06-14 Summary Md: (none) → CurrencyFreaks is a REST API providing real-time and historical foreign exchang…
- 2026-06-14 Score Procurement Friction: (none) → 100
- 2026-06-14 Best For: (none) → Prototypes and side projects - free to start, no sales call, Teams needing broa…
- 2026-06-14 Avoid If: (none) → You have strict compliance requirements
- 2026-06-14 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
- 2026-06-14 Score Trust Readiness: (none) → 35
- 2026-06-14 Score Agent Friendliness: (none) → 10
- 2026-06-14 Score Pricing Transparency: (none) → 100
- 2026-06-14 Score Setup Speed: (none) → 85
- 2026-06-14 Score Docs Quality: (none) → 15
- 2026-06-14 Llms Txt Present: (none) → No
- 2026-06-14 Docs URL: (none) → https://currencyfreaks.com/documentation
- 2026-06-14 Status Page URL: (none) → https://status.currencyfreaks.com
- 2026-06-14 Rendering: (none) → static
- 2026-06-14 Free Tier Available: set to Yes
- 2026-06-14 Free Tier Details: set to Developer plan: 1,000 API calls/month at no charge; USD base currency only; rat…
- 2026-06-14 Self Serve Signup: set to Yes
- 2026-06-14 Requires Sales Call: set to No
- 2026-06-14 Enterprise Plan Available: set to Yes
- 2026-06-14 GDPR: set to Yes
- 2026-06-14 SLA Published: set to Yes
- 2026-06-14 Documented Rate Limits: set to Monthly hard quotas per plan (no hourly/daily sub-limits); free plan: 1,000 cal…
- 2026-06-14 Rate Limit Requests: set to 1000
- 2026-06-14 Rate Limit Window: set to month
- 2026-06-14 Known Restrictions: set to Free plan restricted to USD as base currency only, Free plan provides latest ra…
- 2026-06-14 Auth Methods: set to api_key
- 2026-06-14 Auth Docs URL: set to https://currencyfreaks.com/documentation
- 2026-06-14 API Style: set to rest
- 2026-06-14 Base URL: set to https://api.currencyfreaks.com/v2.0/
- 2026-06-14 API Version: set to v2.0
- 2026-06-14 Versioning Scheme: set to url
- 2026-06-14 Stability: set to ga
- 2026-06-14 Quickstart URL: set to https://currencyfreaks.com/documentation
- 2026-06-14 Idempotency Supported: set to No
- 2026-06-14 Error Format: set to vendor-specific
- 2026-06-14 Requires Verification: set to No
- 2026-06-14 Starting Price Usd: set to 9.99
- 2026-06-14 Price Basis: set to month
- 2026-06-14 Slug: set to currencyfreaks
- 2026-06-14 Launched At: set to 2019-01-01
- 2026-06-14 Notable Customers: set to Equiti, HP, Gartner, University of Georgia, Exigo, Savart, Timify, Oodles
- 2026-06-14 Fields Not Found: set to soc2, hipaa, iso_27001, pci_dss, webhooks_supported, mcp_server_available, depr…
- 2026-06-14 Source Confidence: set to high
- 2026-06-14 Extractor: set to claude-subagent:sonnet
- 2026-06-14 Last Verified At: set to 2026-06-14T00:00:00.000Z
- 2026-06-14 Status: set to published
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-H 'Content-Type: application/json' \
-d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'Suggest a correction to a field (cite a source)
curl -X POST https://apio.sh/api/suggest/currencyfreaks/FIELD \
-H 'Content-Type: application/json' \
-d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'